Book digitized by Google from the library of University of Michigan and uploaded to the Internet Archive by user tpb.
The three "opuscoli" have caption or half-titles as follows:  De Conflagratione Agri Puteolani, Simonis Portii (p. 43-51);  Incendium ad Avernum lacum horribile pridie cal. octob. M.D.XXXVIII. nocte in tempesta exortum (two poems by Borgia, p. [133. i.e. 117]-159, i.e. 143);  Dell'incendio di Pozzuolo Marco Antonio delli Falconi ... (p. [285, i.e. 169] to end) Each is preceded by bibliographical "memorie" of its author.